JP4618632B2 - Heat collection duct and ventilation system using heat collection duct - Google Patents

Heat collection duct and ventilation system using heat collection duct Download PDF

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JP4618632B2
JP4618632B2 JP2004212560A JP2004212560A JP4618632B2 JP 4618632 B2 JP4618632 B2 JP 4618632B2 JP 2004212560 A JP2004212560 A JP 2004212560A JP 2004212560 A JP2004212560 A JP 2004212560A JP 4618632 B2 JP4618632 B2 JP 4618632B2
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heat collecting
heat
duct
flow path
air flow
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JP2006029732A5 (en
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鉄也 杉
泰宏 白鳥
克彦 平野
祥明 樋口
友裕 黒木
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Takenaka Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/50—Energy storage in industry with an added climate change mitigation effect

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Description

本発明は、集熱ダクト及び集熱ダクトを使用した換気システムに関する。   The present invention relates to a heat collection duct and a ventilation system using the heat collection duct.

住宅等の換気システムの省エネルギー化のため、集熱パネルを兼ねた金属製屋根板の下面に沿って、下外端開口で下面側を断熱材で遮蔽した空気流路を斜めに設け、該流路上部から縦ダクトを介して床吹出口へ連通させており、上記屋根板で加熱した空気を上記空気流路を介して集めて床吹出口から吹出すように設けたものが知られている（特許文献１）。   In order to save energy in the ventilation system of houses, etc., an air flow path with a lower outer end opening and a lower surface side shielded by a heat insulating material is provided obliquely along the lower surface of a metal roof plate that also serves as a heat collecting panel. It is known that the air is heated from the upper part of the road to the floor outlet through a vertical duct, and the air heated by the roof plate is collected through the air flow path and blown out from the floor outlet. (Patent Document 1).

又、換気システムではないが、透光性外管内に水等の熱媒体路としての内管を二重筒状に設けるとともに、これら内外両管の間を真空の断熱空間とし、該空間内に、通路方向に長い帯板状の集熱板であって、その巾方向中間部に凹設した嵌合凹溝内に上記内管を嵌合させたものを設けた集熱器が知られている（特許文献２）。
特開2002−235955号 実公昭58−9738号 Although it is not a ventilation system, an inner tube as a heat medium path for water or the like is provided in a translucent outer tube in a double cylinder shape, and a vacuum heat insulating space is formed between the inner and outer tubes, and the space In addition, there is known a heat collector provided with a strip-shaped heat collecting plate that is long in the passage direction and in which the inner tube is fitted in a fitting groove that is recessed in the intermediate portion in the width direction. (Patent Document 2).
JP 2002-235955 A No. 58-9738

特許文献１の如く金属製屋根板を集熱パネルとして用いる換気システムでは、パネルが受光した太陽熱のうち相当部分が外部へ逃散してしまう不利がある。これを避けるため、ガラスなどの透明平板で表面部を形成したパネル型の集熱器とすることも可能であるが、この場合には強度確保のために肉厚のガラス板等を用いなければならず、コストが高くなるとともに、大面積としたときには歪みを生ずるおそれがある。又、屋上エリアを緑化しようとするときには、屋上面の一部を集熱パネルとする換気システムを導入し難く、集熱部のレイアウトの自由度の大きいシステムが要望されている。   In a ventilation system using a metal roof plate as a heat collecting panel as in Patent Document 1, there is a disadvantage that a considerable part of the solar heat received by the panel escapes to the outside. In order to avoid this, it is also possible to use a panel-type heat collector with a surface portion formed of a transparent flat plate such as glass. In this case, a thick glass plate or the like must be used to ensure strength. In addition, the cost increases, and distortion may occur when the area is large. Moreover, when trying to green the rooftop area, it is difficult to introduce a ventilation system in which a part of the rooftop is a heat collection panel, and a system with a high degree of freedom in the layout of the heat collection section is desired.

本出願人は、これらの問題点を鋭意検討し、施工性などの良い換気システムの集熱手段として、換気ダクト自体に集熱機能を兼用させるという着想に到達した。もっともかかる着想を実現するためにも様々な問題があり、例えば特許文献２に開示する如く、外管との間に真空を印加した内管の内部を熱媒体路とした構造を換気ダクトに応用するとすれば、その内管を通常のダクトの太さとしたときに、その回りに囲成するため、ダクト全体が嵩張るものとなるものとなってしまう。   The present applicant has intensively studied these problems and arrived at the idea that the ventilation duct itself also has a heat collecting function as a heat collecting means of a ventilation system having good workability. However, there are various problems to realize such an idea. For example, as disclosed in Patent Document 2, a structure in which a vacuum is applied between the outer tube and the inside of the inner tube as a heat medium path is applied to the ventilation duct. Then, when the inner pipe is made the thickness of a normal duct, it is surrounded around it, so that the entire duct becomes bulky.

本発明は、施工の自由度が大きく、かつ集熱性、施工性、及び経済性に優れた集熱ダクト及び該集熱ダクトを利用した換気システムをコンパクトな構成で実現するため、空気流路24形成用の外筒６を含むダクトの少なくとも一半側部を透光部22とするとともに、他半側部に断熱部18を形成し、かつ上記空気流路24内に上記透光部22に対面する受光面30を有する集熱板８を設置したものを提案する。 The present invention provides a heat collection duct having a large degree of freedom in construction and excellent in heat collection performance, workability, and economy and a ventilation system using the heat collection duct with a compact configuration. At least one half side part of the duct including the outer cylinder 6 for formation is used as the light transmitting part 22, the heat insulating part 18 is formed in the other half side part, and the light transmitting part 22 is faced in the air flow path 24. The thing which installed the heat collecting plate 8 which has the light-receiving surface 30 to propose is proposed.

第1の手段は、一端側に入口12を、また他端側に出口26を有する空気流路24形成用の円筒形の外筒６を含み、一半側部を透光部22とし、他半側部を断熱部18としたダクトであって、
上記外筒を透明材料で形成するとともに、この外筒内に、その筒軸を中心に外筒に対して回転可能な集熱板８を配置し、この集熱板の一面と向かい合う外筒内面部分に沿って集熱板とともに回動可能な断熱層を設けることで、この断熱層が存するダクト部分を、上記断熱部18と、また残りのダクト部分を透光部22とし、
かつこの透光部と対向する集熱板の他面を受光面30とし、
上記空気流路24を集熱板８で第1空気流路部分24ａ及び第２空気流路部分24ｂとに区分し、かつこれら第1空気流路部分及び第２空気流路部分がそれぞれ、入口と出口とに連通するように形成した。 The first means includes a cylindrical outer cylinder 6 for forming an air flow path 24 having an inlet 12 on one end side and an outlet 26 on the other end side. A duct having a heat insulating part 18 on the side ,
The outer cylinder is formed of a transparent material, and a heat collecting plate 8 that is rotatable with respect to the outer cylinder about the cylinder axis is disposed in the outer cylinder, and an inner surface of the outer cylinder that faces one surface of the heat collecting plate By providing a heat insulating layer that can be rotated along with the heat collecting plate along the portion, the duct portion where the heat insulating layer exists is the heat insulating portion 18, and the remaining duct portion is the light transmitting portion 22 .
And the other surface of the heat collecting plate facing this light transmitting portion is the light receiving surface 30 ,
The air flow path 24 is divided into a first air flow path portion 24a and a second air flow path portion 24b by the heat collecting plate 8, and the first air flow path portion and the second air flow path portion are respectively inlets. And formed to communicate with the outlet.

「透光部」は、ガラスや透明アクリルなどの透明材料で形成すると良い。例えばダクトの外筒全体を透明材料で形成するとともに、その一側部内面側に「断熱部」として断熱材を摺動可能に形成するとよい。尚、断熱部は集熱ダクトの長手方向全長に亘って形成するとよい。 The “translucent portion” is preferably formed of a transparent material such as glass or transparent acrylic. For example, the entire outer cylinder of the duct may be formed of a transparent material, and a heat insulating material may be slidable as an “insulating part” on the inner surface side of one side. In addition, it is good to form a heat insulation part over the full length direction of a heat collection duct.

「集熱板」は、熱吸収、及び熱放射をし易い鉄その他の金属で形成するとよく、又、集熱板の表面は、吸熱性の高い光選択性塗料（例えば吸収率0.98の黒色クロムめっき）を塗布すると良い。   The “heat collecting plate” is preferably formed of iron or other metal that easily absorbs heat and emits heat, and the surface of the heat collecting plate is a highly heat-absorbing photoselective paint (for example, black chrome having an absorption rate of 0.98). Apply plating).

上記集熱板８は、上記透光部22との間に第1空気流路部分24ａを、上記断熱部18との間に第２空気流路部分24ｂをそれぞれ介在させて設置している。 The heat collecting plate 8 is provided with a first air flow path portion 24 a interposed between the light transmitting portion 22 and a second air flow path portion 24 b interposed between the heat insulating portion 18 and the heat insulating portion 18.

尚、これら第1空気流路部分24ａ及び第２空気流路部分24ｂは、上記集熱板８によって空間的に遮断されている必要はない。尚、上記集熱板８の表面のほぼ全体は第1空気流路部分24ａに、又、上記集熱板８の裏面のほぼ全体は第２空気流路部分24ｂにそれぞれ面しており、これら各面から熱が放射されるように設けるとよい。   The first air flow path portion 24a and the second air flow path portion 24b do not need to be spatially blocked by the heat collecting plate 8. Note that almost the entire surface of the heat collecting plate 8 faces the first air flow path portion 24a, and almost the entire back surface of the heat collecting plate 8 faces the second air flow passage portion 24b. It is good to provide so that heat may be radiated from each side.

第２の手段は、上記第１の手段を有し、かつ上記第２空気流路部分24ｂと断熱部18との間に蓄熱層20を形成している。 The second means includes the first means, and a heat storage layer 20 is formed between the second air flow path portion 24 b and the heat insulating portion 18.

「蓄熱層」は、ＰＣＭ（Phase Change Material）、即ち潜熱蓄熱材で形成することが望ましい。   The “heat storage layer” is preferably formed of PCM (Phase Change Material), that is, a latent heat storage material.

第３の手段は、第１の手段又は第２の手段を有し、かつ上記外筒６内に、その筒軸回りの回動自在に集熱板８を支持する支持手段10を設け、この支持手段10を、上記外筒６の両端部側に付設した軸受10a,10bの間に透光性の回転軸10ｃを架設することで形成し、又、上記集熱板８を、巾方向中間部に嵌合溝部８ａを有する帯板形として、その嵌合溝部８ａ内へ上記回転軸10ｃを嵌着させることで回転自在に設けた。 Third means includes a first means or the second means, and to the outer cylinder 6, the support means 10 for supporting the rotatably heat collecting plate 8 of the cylinder axis is provided, this The support means 10 is formed by installing a translucent rotating shaft 10c between bearings 10a and 10b attached to both end portions of the outer cylinder 6, and the heat collecting plate 8 is arranged in the middle in the width direction. As a band plate shape having a fitting groove portion 8a in the portion, the rotary shaft 10c is fitted into the fitting groove portion 8a so as to be rotatable.

「集熱板」は手動乃至自動で回転可能に設けることができる。   The “heat collecting plate” can be manually or automatically rotated.

「支持手段」は、集熱板の巾方向内側部分に固定する回転軸と軸受とで構成することもでき、又、外筒の両端部外面に嵌合した回転リングから内方へ突出した係止爪で集熱板の長手方向両端面を係止させることで構成しても良い。これらの構成については後述する。   The “supporting means” can be composed of a rotating shaft and a bearing fixed to the inner side in the width direction of the heat collecting plate, and can be configured to protrude inward from the rotating rings fitted to the outer surfaces of both ends of the outer cylinder. You may comprise by latching the longitudinal direction both end surfaces of a heat collecting plate with a pawl. These configurations will be described later.

尚、上記断熱部18は、集熱板８の両端部の間の外筒部分の内面に沿って、該内面に対して摺動自在に形成すると良い。   The heat insulating portion 18 is preferably formed to be slidable with respect to the inner surface along the inner surface of the outer cylinder portion between both end portions of the heat collecting plate 8.

第４の手段は、第３の手段を有し、かつ上記集熱板８を、太陽光をエネルギー源とする駆動装置40で回転軸10ｃの回りを回転可能に形成している。 The fourth means includes the third means, and the heat collecting plate 8 is formed to be rotatable around the rotation shaft 10c by the driving device 40 using sunlight as an energy source.

具体的には、集熱板８は、太陽光線電池を駆動源とするモーターなどを用いて、太陽の位置に追従して回動するように設けるとよく、更に通年の太陽の位置データに基づく年間プログラムにより集熱板８を回動させるように設けると良い。そのプログラムの詳細については後述する。   Specifically, the heat collecting plate 8 may be provided so as to rotate following the position of the sun using a motor or the like using a solar cell as a driving source, and further based on year-round position data of the sun. The heat collecting plate 8 may be provided so as to be rotated by an annual program. Details of the program will be described later.

「水平板部」は、上記コ字形断熱部の底壁部分との間にスペーサを介在させて支持することができる。   The “horizontal plate portion” can be supported with a spacer interposed between the bottom wall portion of the U-shaped heat insulating portion.

上記集熱板は、更に上記水平板部の両側から立板を起立して、上記三方側壁部から一定間隔を存して断面コ字形に付形することができる。   The heat collecting plate can be further formed in a U-shaped cross section with standing upright from both sides of the horizontal plate portion and at a predetermined interval from the three-side side wall portion.

第５の手段は、集熱ダクトを利用した換気システムであり、建物の屋上その他の屋外空間に、上記第１の手段乃至第４の手段の何れかに記載した集熱ダクト４を、その上流部を下にして斜めに配置するとともに、上記集熱ダクト４の下流部を空調機54を介して建物内の空調空間Ａ内へ接続している。 The fifth means is a ventilation system using a heat collecting duct, and the heat collecting duct 4 described in any one of the first to fourth means is placed upstream of the outdoor space on the roof of the building. And the downstream part of the heat collecting duct 4 is connected to the air conditioning space A in the building via the air conditioner 54.

第６の手段は、第５の手段を有し、かつ上記集熱ダクト４を平行に複数個設け、かつこれら集熱ダクトの上端部を一本の集熱ヘッダー36に接続し、該集熱ヘッダーを介して空調機54へ連通させている。 The sixth means has fifth means, and a plurality of the heat collecting ducts 4 are provided in parallel, and the upper end portions of these heat collecting ducts are connected to one heat collecting header 36, and the heat collecting duct The air conditioner 54 communicates with the header.

第１の手段に係る発明によれば、次の効果を得られる。
○本願のダクトは、その外筒６一半側部を透光部22とし、他半側部に断熱部18を設けて集熱器の機能を兼備させたから、ダクトの増設・組合せにより立体的で自由なレイアウトが可能となり、例えば屋上の緑化帯回りの僅かなスペースを有効利用したり、或いは折板による工場等の屋根においてトップライトの列の間にトップライトと平行に集熱ダクトを設置することができ、適用範囲が飛躍的に広がる。
○又、集熱器の外形をダクト型とすることで、パネル型の集熱器に比べて歪みによる大きさの限界を解消して施工性を向上することができる。
○集熱器の全体形状をパネル型に比べて強度に優るダクト型、即ち円筒乃至多角筒型としたから、該筒形状をガラスやアクリル等の透明材料で形成する際にそのガラス等の厚みを小として材料費を低減することができる。
○又本願ダクトは、外筒内の空気流路24に集熱板８を内装したから、集熱効率が高い。
○上記集熱板８は、透光部22に対向させて気流を妨げないように配向しているから、上記空気流路24の流路面積を減少させず、コンパクトで大流量の通風が得られる。 According to the invention relating to the first means, the following effects can be obtained.
○ The duct of this application has a translucent part 22 on one half side of the outer cylinder 6 and a heat insulating part 18 on the other half side to combine the functions of a heat collector. Free layout is possible, for example, a small space around the rooftop green belt can be used effectively, or a heat collecting duct is installed parallel to the toplight between the toplight rows on the roof of a factory with folded plates Can be applied and the scope of application can be greatly expanded.
In addition, by making the outer shape of the heat collector a duct type, it is possible to eliminate the size limit due to distortion and improve the workability compared to a panel type heat collector.
○ Since the overall shape of the heat collector is a duct type that is superior in strength to the panel type, that is, a cylinder or a polygonal cylinder, the thickness of the glass or the like when the cylinder is formed of a transparent material such as glass or acrylic The material cost can be reduced by reducing the size of the material.
In addition, the duct of the present application has high heat collection efficiency because the heat collecting plate 8 is provided in the air flow path 24 in the outer cylinder.
○ The heat collecting plate 8 is oriented so as not to interfere with the air flow by facing the translucent part 22, so that the air flow area of the air flow path 24 is not reduced and a compact and large flow rate ventilation is obtained. It is done.

また第１の手段に係る発明によれば、透光部22を通して集熱板８の表面に照射された太陽光の熱が該表面より対流熱として第１空気流路部分24ａへ、集熱板８の裏面から放射熱として第２空気流路部分へそれぞれ放出され、従って第１、第２空気流路部分24a,24ｂを介して効率的に熱を取り出すことができる。
さらに第１の手段によれば、円筒形の外筒６内に、その筒軸回りの回動自在に集熱板８を設けたから、その外筒の内径いっぱいに集熱板８の巾をとって受光面30の面積を大きくとることができるとともに、太陽に追随して集熱板の向きを調整して、有効受光面積を大きくすることができる。 Further, according to the invention relating to the first means, the heat of sunlight irradiated to the surface of the heat collecting plate 8 through the light transmitting portion 22 is transferred from the surface to the first air flow path portion 24a as convective heat. 8 is released as radiant heat from the rear surface of the second air flow path portion to the second air flow path portion. Therefore, heat can be efficiently extracted through the first and second air flow path portions 24a and 24b.
Further, according to the first means, since the heat collecting plate 8 is provided in the cylindrical outer cylinder 6 so as to be rotatable around its cylinder axis, the width of the heat collecting plate 8 is taken to fill the inner diameter of the outer cylinder. Thus, the area of the light receiving surface 30 can be increased, and the effective light receiving area can be increased by adjusting the direction of the heat collecting plate following the sun.

第２の手段に係る発明によれば、上記第２空気流路部分24ｂと断熱部18との間に蓄熱層20を形成したから、第２空気流路部分24ｂから外部への熱の逃散を防止して更に熱取出しの効率を上げることができる。 According to the invention relating to the second means, since the heat storage layer 20 is formed between the second air flow path portion 24b and the heat insulating portion 18, heat escape from the second air flow path portion 24b to the outside is prevented. The efficiency of heat extraction can be further increased.

第３の手段によれば、次の効果を奏する。
○集熱板８の嵌合溝部８ａに回転軸10ｃを嵌着させたから、該回転軸を介して集熱板８に回転力を伝達し易く、かつ、組立ても容易である。
○上記回転軸10ｃは透明材料で形成するから、集熱板８の受光面30に陰が出来ず、集熱効率が良い。
○更に既述特許文献２と相違して空気の流路は回転軸10ｃの外側に形成され、かつ該回転軸の径は空気の流路である特許文献２の内管よりも小外径に形成することができるから、ダクト全体が嵩張ることがない。 According to the 3rd means, there exist the following effects.
Since the rotating shaft 10c is fitted in the fitting groove 8a of the heat collecting plate 8, the rotational force can be easily transmitted to the heat collecting plate 8 through the rotating shaft and can be easily assembled.
○ Since the rotating shaft 10c is made of a transparent material, the light receiving surface 30 of the heat collecting plate 8 cannot be shaded, and heat collecting efficiency is good.
○ Further, unlike the above-mentioned Patent Document 2, the air flow path is formed outside the rotating shaft 10c, and the diameter of the rotating shaft is smaller than the inner tube of Patent Document 2 which is the air flow path. Since it can be formed, the entire duct is not bulky.

第４の手段に係る発明によれば、集熱板８を、太陽光をエネルギー源とする駆動装置40で回転軸10ｃの回りを回転可能に形成したから、このシステムの運用のためのエネルギーを全て太陽エネルギーでまかなうことができ、有利である。 According to the fourth aspect of the invention, the heat collecting plate 8 is formed so as to be rotatable around the rotating shaft 10c by the driving device 40 using sunlight as an energy source. All can be covered by solar energy, which is advantageous.

第５の手段に係る発明によれば、上記第１乃至第７の手段に係る集熱ダクトを建物の換気システムに適用したから、換気量を大きくかつ熱効率を高くすることができ、又、これらダクトを上流部を下にして斜めに配置したから、次の効果を奏する。
○各ダクトの外気導入口が下側となるので、雨水等の侵入を防げる。
○斜めに設置した各ダクト内の空気は温められて上昇するので下流側より建物内部へ引き込むことが容易である。 According to the invention relating to the fifth means, since the heat collecting duct according to the first to seventh means is applied to the ventilation system of the building, the ventilation amount can be increased and the thermal efficiency can be increased. Since the duct is disposed obliquely with the upstream portion down, the following effects are produced.
○ Since the outside air inlet of each duct is on the lower side, intrusion of rainwater and the like can be prevented.
○ The air in each duct installed at an angle is heated and rises, so it is easy to draw it into the building from the downstream side.

第６の手段に係る発明によれば、上記集熱ダクト４を平行に複数個設け、かつこれら集熱ダクトの上端部を一本の集熱ヘッダー36に接続し、該集熱ヘッダーを介して空調機54へ連通させたから、更に大容量の温風を建物に取り込むことができる。 According to the invention relating to the sixth means, a plurality of the heat collecting ducts 4 are provided in parallel, and the upper end portions of these heat collecting ducts are connected to one heat collecting header 36, and the heat collecting ducts are interposed via the heat collecting header. Since the air conditioner 54 is communicated, a larger volume of hot air can be taken into the building.

図１から図８は、本発明の第１の実施形態に係る集熱ダクト及び該集熱ダクト付き換気システムを示している。   1 to 8 show a heat collection duct and a ventilation system with the heat collection duct according to a first embodiment of the present invention.

図１は、本システムの全体の構成を示しており、同図中Ａは空調領域であり、Ｂは建物の床、Ｃは建物の外壁、Ｄは建物の屋上である。   FIG. 1 shows the overall configuration of the present system, in which A is an air-conditioning area, B is the floor of the building, C is the outer wall of the building, and D is the roof of the building.

本システムは、集熱部２と、配熱部を兼ねる換気路50とで構成されている。該構成のうち公知の部分を説明すると、集熱部２では、屋上Ｄに集熱ダクト４を斜めに配置している。該集熱ダクトの上流部（下端部）は図２の如く外気導入口（入口）12として開口しており、又集熱ダクトの下流部（上端部）は暖められた空気の取出口（出口）として、換気路50の連結ダクト52へ接続されている。該連通ダクトは建物の外壁Ｃに配置された空調機54へ接続され、該空調機から給気ダクト56を介して建物の床Ｂなどに開口する吹出口58へ連通している。尚、空調機54及び吹出口58の位置は適宜変更することができる。上記空調機54は、必要により集熱ダクト４から送風された暖気を加熱又は加湿するとともに、防塵フィルタなどにより清浄化することで、空調空気として給気する。 This system is composed of a heat collecting section 2 and a ventilation path 50 that also serves as a heat distribution section. A known part of the configuration will be described. In the heat collecting section 2, the heat collecting duct 4 is arranged obliquely on the roof D. The upstream part (lower end part) of the heat collecting duct is opened as an outside air inlet (inlet) 12 as shown in FIG. 2, and the downstream part (upper end part) of the heat collecting duct is an outlet (outlet ) for warmed air. ) To the connection duct 52 of the ventilation path 50. The communication duct is connected to an air conditioner 54 disposed on the outer wall C of the building, and communicates from the air conditioner via an air supply duct 56 to an outlet 58 that opens to the floor B of the building. The positions of the air conditioner 54 and the air outlet 58 can be changed as appropriate. The air conditioner 54 supplies air as conditioned air by heating or humidifying the warm air blown from the heat collecting duct 4 as necessary and purifying it with a dustproof filter or the like.

本発明において、図２に示す如く、集熱部２は、複数の集熱ダクト４…と、集熱ヘッダー36と、駆動装置40とで構成されている。   In the present invention, as shown in FIG. 2, the heat collecting section 2 includes a plurality of heat collecting ducts 4, a heat collecting header 36, and a drive device 40.

上記集熱ダクト４は、両端開口の円筒状の外筒６と、該外筒内に挿入した集熱板８と、この集熱板を回転自在に支持する支持手段10と、上記外筒の一側部に形成した断熱部18及び蓄熱層20で形成している。又、本実施形態では、断熱部18設置箇所を除く外筒部分を透光部22としている。   The heat collecting duct 4 includes a cylindrical outer tube 6 having openings at both ends, a heat collecting plate 8 inserted into the outer tube, a support means 10 for rotatably supporting the heat collecting plate, and the outer tube. The heat insulating part 18 and the heat storage layer 20 are formed on one side. In the present embodiment, the outer cylinder portion excluding the place where the heat insulating portion 18 is installed is the light transmitting portion 22.

上記外筒６は、透明アクリル樹脂乃至ガラスなどの透明材料により、冬季の日射でダクト内通過空気の所要の温度上昇が得られる程度の長さに形成するものとする。又、外筒６は当該長さに形成して斜めに設置しても壊れない程度の剛性を有するものとする。上記外筒６で囲成される空間は空気流路24を形成している。又、上記外筒６の底壁部分下流側には、後述の集熱ヘッダーとの接続口26を開口している。   The outer cylinder 6 is formed of a transparent material such as transparent acrylic resin or glass so that the required temperature rise of the air passing through the duct is obtained by solar radiation in winter. Further, the outer cylinder 6 is formed to have such a length and has a rigidity that does not break even if it is installed obliquely. A space surrounded by the outer cylinder 6 forms an air flow path 24. Further, a connection port 26 with a heat collecting header described later is opened on the downstream side of the bottom wall portion of the outer cylinder 6.

上記支持手段10は、本実施形態では、上記外筒６の両開口部に付設した第１、第２軸受10a,10bと、これら両軸受間に同軸状に架設した回転軸10cとで構成している。   In the present embodiment, the support means 10 is composed of first and second bearings 10a and 10b attached to both openings of the outer cylinder 6, and a rotary shaft 10c installed coaxially between the two bearings. ing.

上記第１軸受10a及び第2軸受10bは、図３及び図４に示す如く上記外筒６の両開口部に嵌着された軸孔11,11付きの枠板として形成されており、それら軸孔の孔縁には回転軸受用のベアリング14を付設している。上流側に位置する第１軸受10aの適所、例えば該第１軸受の上半部及び下半部には、それぞれ広口の外気導入口12を開口している。但し、これら外気導入口は、例えば前述の外筒６の上壁部及び下壁部にそれぞれ上下一対穿設しても良い。   The first bearing 10a and the second bearing 10b are formed as frame plates with shaft holes 11 and 11 fitted in both openings of the outer cylinder 6 as shown in FIGS. A bearing 14 for a rotary bearing is attached to the hole edge of the hole. A wide open air introduction port 12 is opened at an appropriate position of the first bearing 10a located on the upstream side, for example, at the upper half and the lower half of the first bearing. However, a pair of upper and lower outside air inlets may be formed in the upper wall portion and the lower wall portion of the outer cylinder 6 described above, for example.

上記回転軸10cは、両端部を小外径部13として、これら小外径部を上記ベアリング14内に嵌挿させることで軸止させている。回転軸10cは、外筒と同様に透明材料で形成するものとし、かつ材料節減のために中空筒形とすることが望ましい。又、回転軸10cの下流側端面には、後述の駆動装置との接合用の切溝15を穿設する。   The rotary shaft 10c is fixed at both ends with small outer diameter portions 13 and these small outer diameter portions are fitted and inserted into the bearing. The rotating shaft 10c is preferably formed of a transparent material like the outer cylinder, and is preferably a hollow cylinder in order to save material. Further, a kerf 15 for joining with a driving device to be described later is formed in the downstream end surface of the rotating shaft 10c.

上記集熱板８は、ダクト長手方向全長に亘って延びる帯板状であって、その巾方向中間部には、上面開口の半円筒形の嵌合溝部８ａを横設しており、該嵌合溝部内へ上記回転軸10cを嵌着することで該回転軸とともに回転可能に形成している。図７(Ａ)に示す通り嵌合溝部両側の集熱板部分８b、８bは、筒軸方向から見たときに、外筒６の直径Ｌに沿って同図水平方向に延びており、かつ上記嵌合溝部８ａ及び両集熱板部分８bの各上面は受光面30を、又嵌合溝部８ａ及び両集熱板部分８bの各下面は輻射面32を、それぞれ形成している。これら受光面30及び輻射面32は、好ましくは黒色の吸光性塗料を集熱板８の地金に塗布して形成すると良く、又、集熱板８は、熱導電性の良い鉄などの金属で形成すると良い。図示例では、上記集熱板部分８b、８bの外端部を上記外筒６内面に摺接させており、集熱板８は、外筒６内の空気流路24を、上記受光面30に面する第１空気流路部分24ａと上記輻射面32に面する第２流路部分24bとに区切っている。もっとも上記集熱板部分の外端部と上記外筒６内面との間には隙間があってもよく、該隙間を介して第１、第２空気流路部分24a,24bが連通していても良い。   The heat collecting plate 8 is in the form of a strip extending over the entire length in the longitudinal direction of the duct, and a semi-cylindrical fitting groove 8a having an upper surface opening is provided in the middle in the width direction. By fitting the rotary shaft 10c into the groove portion, the rotary shaft 10c can be rotated together with the rotary shaft. As shown in FIG. 7A, the heat collecting plate portions 8b, 8b on both sides of the fitting groove portion extend in the horizontal direction along the diameter L of the outer cylinder 6 when viewed from the cylinder axis direction, and The upper surfaces of the fitting groove 8a and the two heat collecting plate portions 8b form a light receiving surface 30, and the lower surfaces of the fitting groove 8a and the two heat collecting plate portions 8b form a radiation surface 32, respectively. The light receiving surface 30 and the radiation surface 32 are preferably formed by applying a black light-absorbing paint to the base metal of the heat collecting plate 8, and the heat collecting plate 8 is made of a metal such as iron having good thermal conductivity. It is good to form with. In the illustrated example, the outer ends of the heat collecting plate portions 8b and 8b are in sliding contact with the inner surface of the outer cylinder 6, and the heat collecting plate 8 communicates the air flow path 24 in the outer cylinder 6 with the light receiving surface 30. Is divided into a first air flow path portion 24a facing the first and a second flow path portion 24b facing the radiation surface 32. However, there may be a gap between the outer end portion of the heat collecting plate portion and the inner surface of the outer cylinder 6, and the first and second air flow path portions 24a and 24b communicate with each other through the gap. Also good.

上記断熱部18は、上記集熱板８の輻射面32と対面して、図７(Ａ)に示す如く集熱板の巾方向両端部間の外筒部分内面に沿って半円筒形に形成しており、該断熱部18内面と集熱板８の輻射面32とで上記第２空気流路部分24ｂを囲むように形成している。該断熱部18は、集熱板８の回動に伴い、上記外筒６内面を摺動可能に設ける。該摺動の際にその半筒形の形状を維持するため、断熱部18はある程度の保形性を備えた断熱材料で形成すると良い。又、断熱部18の厚さは、上記第２流路部分24ｂから外部への熱の逃散を防ぐのに十分な大きさとする。   The heat insulating portion 18 faces the radiation surface 32 of the heat collecting plate 8 and is formed in a semi-cylindrical shape along the inner surface of the outer cylinder portion between both ends in the width direction of the heat collecting plate as shown in FIG. The inner surface of the heat insulating portion 18 and the radiation surface 32 of the heat collecting plate 8 are formed so as to surround the second air flow path portion 24b. The heat insulating portion 18 is slidably provided on the inner surface of the outer cylinder 6 as the heat collecting plate 8 rotates. In order to maintain the semi-cylindrical shape during the sliding, the heat insulating portion 18 is preferably formed of a heat insulating material having a certain degree of shape retention. Further, the thickness of the heat insulating portion 18 is set to be large enough to prevent heat from escaping from the second flow path portion 24b to the outside.

上記蓄熱層20は上記断熱部18の内面に貼着する。該蓄熱層は、潜熱蓄熱材で形成することができる。   The heat storage layer 20 is attached to the inner surface of the heat insulating portion 18. The heat storage layer can be formed of a latent heat storage material.

上記集熱ヘッダー36は、図１の如く屋上Ｄから一定の距離をおいて図示しない支持脚などで支持されている。又、集熱ヘッダー36の上面からは連通筒38を起立している。   The heat collecting header 36 is supported by a support leg (not shown) at a certain distance from the roof D as shown in FIG. A communication tube 38 is erected from the upper surface of the heat collecting header 36.

上記駆動装置40は、図４に示す如く上記集熱ヘッダー36の上面から脚板42を介して突出した電動モータ44として構成されており、該モータの駆動軸を上記回転軸10cの切溝15に接続している。駆動装置の制御は、図示しない制御装置により行なうことができるものとし、１時間おきに回転軸を回転させると良い。電動モータは、角度（回転範囲）を抵抗値として設定しておき、制御する電流値分（抵抗値と反比例）の回転トルクにより回転させることができる。   As shown in FIG. 4, the drive device 40 is configured as an electric motor 44 protruding from the upper surface of the heat collecting header 36 through a leg plate 42, and the drive shaft of the motor is formed in the groove 15 of the rotary shaft 10c. Connected. The drive device can be controlled by a control device (not shown), and the rotation shaft is preferably rotated every other hour. The electric motor can be rotated by rotational torque corresponding to the current value to be controlled (inversely proportional to the resistance value) by setting the angle (rotation range) as a resistance value.

上記集熱ダクト４…は、図１に示す如く下流側端部を上にして、該下流側の外筒部分の接続口26を、上記集熱ヘッダー36の連通筒38上端に接続することで斜めに設置する。各集熱ダクト４は、上流側を南向きとして南北方向に配列し、太陽が東から西へと移動するのに追随して集熱板８の向きを調節できるようにすることが望ましい。又集熱ダクト４の勾配は、その設置場所の冬至での南中時太陽高度に応じて、該南中時に太陽光が上記集熱板８の受光面に直角に当たるようにすることが熱効率上望ましいが、設置場所の広さによって適宜変更できる。例えば設置場所が極端に狭ければ、上記各集熱ダクトを建物の外壁Cの南向き部分に沿って、上流側を下にして鉛直に固定することも可能である。   As shown in FIG. 1, the heat collecting ducts 4... Are connected to the upper end of the communication tube 38 of the heat collecting header 36 by connecting the connection port 26 of the outer cylinder portion on the downstream side. Install diagonally. It is desirable that the heat collecting ducts 4 be arranged in the north-south direction with the upstream side facing south so that the direction of the heat collecting plate 8 can be adjusted following the sun moving from east to west. Further, in terms of thermal efficiency, the gradient of the heat collecting duct 4 is set so that the sunlight strikes the light receiving surface of the heat collecting plate 8 at right angles during the south and middle according to the solar altitude at the winter solstice of the installation location. Although desirable, it can be appropriately changed depending on the size of the installation location. For example, if the installation location is extremely narrow, it is also possible to fix each of the heat collecting ducts vertically along the south facing portion of the outer wall C of the building with the upstream side down.

上記構成において、図１の状態から、空調機54を作動させると、該空調機の送風ファン（図示せず）の吸引力により、外気が外気導入口12から集熱ダクト４の空気流路24を通過して換気路50の連結ダクト52を介して空調機54に入り、加熱・加湿されて、その温風が給気ダクト56から吹出口58を経て空調空間Ａへ吹き込まれる。ここで集熱ダクト４を外気が通過する際に、図７(Ａ)に示す如く太陽光が集熱ダクト４の透光部22を通って集熱板８の受光面30に当たって該受光面から第１空気流路部分24ａ内へ主に対流によって熱が伝達されるとともに、受光面30から集熱板８の内部を通って輻射面32へ熱が伝導し、輻射熱として第２流路部分24b内へ放出される。これら両空気流路部分に放出された熱により、各流路部分を通過する空気の温度が上昇するので、空調機54において加熱する熱量が節約され、省エネルギーに資する。又、上記集熱板８は、図７(Ｂ)に示す如く、太陽の移動に伴い、設定された集熱ダクト４の勾配の範囲で有効受光面積が最大となるように、好ましくは受光面30と太陽光線とが直角になる向きを変えるように制御する。   In the above configuration, when the air conditioner 54 is operated from the state of FIG. 1, the outside air flows from the outside air inlet 12 to the air flow path 24 of the heat collecting duct 4 due to the suction force of a blower fan (not shown) of the air conditioner. The air enters the air conditioner 54 through the connection duct 52 of the ventilation path 50, is heated and humidified, and the warm air is blown from the air supply duct 56 into the air-conditioned space A through the outlet 58. Here, when the outside air passes through the heat collecting duct 4, sunlight hits the light receiving surface 30 of the heat collecting plate 8 through the light transmitting portion 22 of the heat collecting duct 4 as shown in FIG. Heat is transmitted mainly into the first air flow path portion 24a by convection, and the heat is conducted from the light receiving surface 30 through the inside of the heat collecting plate 8 to the radiation surface 32, and as the radiant heat, the second flow path portion 24b. It is released inside. Since the temperature of the air passing through each flow path portion is increased by the heat released to both the air flow path portions, the amount of heat heated in the air conditioner 54 is saved, which contributes to energy saving. Further, as shown in FIG. 7B, the heat collecting plate 8 is preferably a light receiving surface so that the effective light receiving area is maximized within the set gradient range of the heat collecting duct 4 as the sun moves. It controls to change the direction in which 30 and sunlight are perpendicular.

図８は、図１乃至図７の図示例の支持手段10の変形例を示している。本例の支持手段10は、嵌合筒10eと回転リング10fとで形成されている。   FIG. 8 shows a modification of the supporting means 10 in the illustrated example of FIGS. The support means 10 of this example is formed by a fitting cylinder 10e and a rotating ring 10f.

上記嵌合筒10ｅは、上記外筒６の上流側及び下流側両端部外面に抜出し不能に嵌着させてあり、その筒壁外面の中間部にはスライド溝16を周設している。   The fitting cylinder 10e is fitted on the outer surface of both upstream and downstream ends of the outer cylinder 6 so that it cannot be pulled out, and a slide groove 16 is provided in the middle of the outer surface of the cylinder wall.

上記回転リング10ｆは、上記スライド溝16内に摺動自在に嵌合されており、該回転リングの両側部から集熱ダクト４の両端面側へ突出したＬ字形の係止片17の先端部を、上記集熱板８の長手方向両端面に固定している。本例では、集熱板に回転軸嵌合用の溝を形成する必要はなく、又、回転軸も省略できるので、外筒内の流路面積を大きくとることができる。集熱板８を回転させるときには、上記回転リングの外面を駆動装置に接続すればよい。又、上記外筒６の上流側端面における集熱板８上面と外筒筒縁の上半部との間隙、及び集熱板８下面と外筒筒縁の下半部との間隙は外気導入口12を形成する。又、外筒６の下流側端面におけるこれらの間隙は、閉塞板などで閉塞すればよい。   The rotating ring 10f is slidably fitted in the slide groove 16, and the tip end of an L-shaped locking piece 17 projecting from both sides of the rotating ring toward both end surfaces of the heat collecting duct 4 Are fixed to both end surfaces of the heat collecting plate 8 in the longitudinal direction. In this example, it is not necessary to form a groove for fitting the rotating shaft on the heat collecting plate, and the rotating shaft can be omitted, so that the flow passage area in the outer cylinder can be increased. When the heat collecting plate 8 is rotated, the outer surface of the rotating ring may be connected to the driving device. In addition, the gap between the upper surface of the heat collecting plate 8 and the upper half of the outer cylinder cylinder edge on the upstream end surface of the outer cylinder 6 and the gap between the lower surface of the heat collecting plate 8 and the lower half of the outer cylinder cylinder edge are introduced into the outside air. Mouth 12 is formed. Further, these gaps on the downstream end face of the outer cylinder 6 may be closed with a closing plate or the like.

図９乃至図１０は、本発明の参考例に係る集熱ダクトを示すものであり、該集熱ダクトは、外筒６を四角筒状に形成したものである。以下第１実施形態と同じ構成については同一符号を付することで説明を省略する。 9 to 10 show a heat collection duct according to a reference example of the present invention, and the heat collection duct is formed by forming the outer cylinder 6 into a square cylinder shape. Hereinafter, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

図９の図示例では、外筒６そのものを、平板形の透光部22と、断面凹字形の樋部材として形成した断熱部18とで構成している。上記透光部22は断熱部18の上面に着脱自在に設けることができる。透光部22は、第1実施形態と同様に透明アクリル樹脂又はガラスで形成することができ、又、断熱部18は、ガルバニウム鋼板などで形成することができる。又、図示例では、外筒６を長手方向に複数の外筒部分で分割している。上記断熱部18の底壁部分上面には、蓄熱層20を敷設している。該蓄熱層は必ずしも保形性を有するものでなくても良い。 In the illustrated example of FIG. 9, the outer cylinder 6 itself is composed of a flat plate-shaped light transmitting portion 22 and a heat insulating portion 18 formed as a flange member having a concave cross section. The translucent part 22 can be detachably provided on the upper surface of the heat insulating part 18. Translucent portion 22 may be formed by the same transparent acrylic resin or glass and the first embodiment, also, the heat insulating portion 18 may be formed like gal Baniumu steel. In the illustrated example, the outer cylinder 6 is divided into a plurality of outer cylinder portions in the longitudinal direction. A heat storage layer 20 is laid on the upper surface of the bottom wall portion of the heat insulating portion 18. The heat storage layer does not necessarily have shape retention.

又、外筒６の断熱部18の底壁上面には、水平板状の集熱板８を載置している。該集熱板下面と断熱部の底壁上面との間にはスペーサ９を挿入して、第2空気流路部分24b形成代を設けている。又、上記集熱板８の上面と上記透光部22の下面との間には第1流路部分24ａが形成されており、第１、第２空気流路部分はそれぞれ連通している。上記集熱板８は例えば鋼板などの金属板で形成することができ、又、その表面には黒色亜鉛メッキを施すことが好ましい。   Further, a horizontal plate-shaped heat collecting plate 8 is placed on the upper surface of the bottom wall of the heat insulating portion 18 of the outer cylinder 6. A spacer 9 is inserted between the lower surface of the heat collecting plate and the upper surface of the bottom wall of the heat insulating portion to provide a space for forming the second air flow path portion 24b. Further, a first flow path portion 24a is formed between the upper surface of the heat collecting plate 8 and the lower surface of the light transmitting portion 22, and the first and second air flow path portions are in communication with each other. The heat collecting plate 8 can be formed of a metal plate such as a steel plate, for example, and the surface is preferably black galvanized.

参考例の集熱ダクトは、一日の太陽の動きに対応して東西方向に設けるとよい。又、この場合には、図示する如く上記集熱ダクトを屋上Dに無勾配で設置すればよい。 The heat collecting duct of the reference example may be provided in the east-west direction corresponding to the movement of the sun in the day. In this case, the heat collecting duct may be installed on the roof D with no gradient as shown.

図１０は、図９の変形例であって、上記集熱板８を、その水平板部８cの巾方向両端部から縦板部8d、8dをそれぞれ立設して、上記平板状の集熱板８を断面コ字形に形成したものである。該集熱板の縦板部分の上端は上記透光部22下面に突き当てており、該透光部下面と集熱板８内面とで第1空気流路部分24ａを、又透光部下面と集熱板８外面と断熱部18の内面とで第２空気流路部分24ｂを形成している。   FIG. 10 shows a modification of FIG. 9 in which the plate-like heat collecting plate 8 is provided with vertical plate portions 8d and 8d erected from both ends in the width direction of the horizontal plate portion 8c. The plate 8 is formed in a U-shaped cross section. The upper end of the vertical plate portion of the heat collecting plate is in contact with the lower surface of the light transmitting portion 22, and the first air flow path portion 24a is formed between the lower surface of the light transmitting portion and the inner surface of the heat collecting plate 8, and the lower surface of the light transmitting portion. The outer surface of the heat collecting plate 8 and the inner surface of the heat insulating portion 18 form a second air flow path portion 24b.

本発明の第１の実施形態に係る集熱ダクト及び該集熱ダクトを使用した換気システムの概念図である。It is a conceptual diagram of the ventilation system which uses the heat collection duct which concerns on the 1st Embodiment of this invention, and this heat collection duct. 図１システムの集熱部の構成を示す斜視図である。It is a perspective view which shows the structure of the heat collecting part of the FIG. 1 system. 図１のダクトの上流側端部の拡大斜視図である。It is an expansion perspective view of the upstream edge part of the duct of FIG. 図１のダクトの下流側端部の拡大斜視図である。It is an expansion perspective view of the downstream end part of the duct of FIG. 図４のダクト端部の拡大断面図である。It is an expanded sectional view of the duct end part of FIG. 図１のダクトの途中部を切断して示す斜視図である。It is a perspective view which cut | disconnects and shows the middle part of the duct of FIG. 図１のダクトの作用を示す断面図である。It is sectional drawing which shows the effect | action of the duct of FIG. 図３のダクト端部の変形例を示す拡大斜視図である。It is an expansion perspective view which shows the modification of the duct edge part of FIG. 本発明の参考例に係る集熱ダクトの斜視図である。It is a perspective view of the heat collection duct which concerns on the reference example of this invention. 図９のダクトの変形例を示す断面図である。It is sectional drawing which shows the modification of the duct of FIG.

符号の説明Explanation of symbols

Ａ…空調空間 Ｂ…建物の床、Ｃ…建物の外壁、Ｄ…建物の屋上 Ｌ…ダクト直径
２…集熱部 ４…集熱ダクト ６…外筒 ６ａ…外筒部分
８…集熱板 ８ａ…嵌合溝部 ８ｂ…集熱板部分 ８ｃ…水平板部
８ｄ…縦板部 ９…スペーサ
10…支持手段 10a…第１軸受 10b…第２軸受 10c…回転軸
10e…嵌合筒 10f…回転リング
11…軸孔 12…外気導入口 13…回転軸小外径部 14…ベアリング
15…切溝 16…スライド溝 17…係止爪 18…断熱部 20…蓄熱層
22…透光部 24…空気流路 24ａ…第１空気流路部分 24b…第２空気流路部分
26…接続口 30…受光面 32…輻射面
36…集熱ヘッダー 38…連通筒 40…駆動装置 42…脚板 44…電動モータ
50…換気路 52…連結ダクト 54…空調機 56…給気ダクト 58…吹出口


A ... Air-conditioned space B ... Building floor, C ... Building outer wall, D ... Building rooftop L ... Duct diameter 2 ... Heat collecting part 4 ... Heat collecting duct 6 ... Outer cylinder 6a ... Outer cylinder part 8 ... Heat collecting plate 8a ... Fitting groove 8b ... Heat collecting plate 8c ... Horizontal plate
8d ... Vertical plate part 9 ... Spacer
10 ... support means 10a ... first bearing 10b ... second bearing 10c ... rotary shaft
10e ... Fitting cylinder 10f ... Rotating ring
11 ... Shaft hole 12 ... Outside air inlet 13 ... Rotating shaft small outer diameter 14 ... Bearing
15 ... Groove 16 ... Slide groove 17 ... Locking claw 18 ... Heat insulation 20 ... Heat storage layer
22 ... Translucent part 24 ... Air channel 24a ... First air channel part 24b ... Second air channel part
26 ... Connection port 30 ... Light receiving surface 32 ... Radiation surface
36 ... Heat collecting header 38 ... Communication tube 40 ... Drive device 42 ... Leg plate 44 ... Electric motor
50 ... Ventilation channel 52 ... Connecting duct 54 ... Air conditioner 56 ... Air supply duct 58 ... Blow-off port


Claims (6)

一端側に入口(12)を、また他端側に出口(26)を有する空気流路(24)形成用の円筒形の外筒(６)を含み、一半側部を透光部(22)とし、他半側部を断熱部(18)としたダクトであって、
上記外筒を透明材料で形成するとともに、この外筒内に、その筒軸を中心に外筒に対して回転可能な集熱板(８)を配置し、この集熱板の一面と向かい合う外筒内面部分に沿って集熱板とともに回動可能な断熱層を設けることで、この断熱層が存するダクト部分を、上記断熱部(18)と、また残りのダクト部分を透光部(22)とし、
かつこの透光部と対向する集熱板の他面を受光面(30)とし、
上記空気流路(24)を集熱板(８)で第1空気流路部分(24ａ)及び第２空気流路部分(24ｂ)とに区分し、かつこれら第1空気流路部分及び第２空気流路部分がそれぞれ、入口と出口とに連通するように形成したことを特徴とする、集熱ダクト。 It includes a cylindrical outer cylinder (6) for forming an air flow path (24) having an inlet (12) on one end side and an outlet (26) on the other end side. And a duct with the other half side as a heat insulating part (18) ,
The outer cylinder is formed of a transparent material, and a heat collecting plate (8) that is rotatable with respect to the outer cylinder about the cylinder axis is disposed in the outer cylinder, and an outer surface facing one surface of the heat collecting plate. By providing a heat insulating layer that can be rotated along with the heat collecting plate along the inner surface portion of the cylinder, the duct portion where the heat insulating layer exists, the heat insulating portion (18), and the remaining duct portion as the light transmitting portion (22) And
And the other surface of the heat collecting plate facing the light transmitting portion is a light receiving surface (30) ,
The air flow path (24) is divided into a first air flow path part (24a) and a second air flow path part (24b) by a heat collecting plate (8), and the first air flow path part and the second air flow path part A heat collecting duct, wherein each air flow path portion is formed to communicate with an inlet and an outlet . 上記第２空気流路部分(24ｂ)と断熱部(18)との間に蓄熱層(20)を形成したことを特徴とする、請求項１記載の集熱ダクト。 The heat collecting duct according to claim 1 , wherein a heat storage layer ( 20 ) is formed between the second air flow path portion ( 24b ) and the heat insulating portion ( 18 ) . 上記外筒(６)内に、その筒軸回りの回動自在に集熱板(８)を支持する支持手段(10)を設け、この支持手段(10)を、上記外筒(６)の両端部側に付設した軸受(10a,10b)の間に透光性の回転軸(10ｃ)を架設することで形成し、又、上記集熱板(８)を、巾方向中間部に嵌合溝部(８ａ)を有する帯板形として、その嵌合溝部(８ａ)内へ上記回転軸(10ｃ)を嵌着させることで回転自在に設けたことを特徴とする、請求項１又は請求項２記載の集熱ダクト。 To the outer tube (6) in the support means (10) for supporting the heat collecting plate (8) freely its cylindrical axis of rotation is provided, the support means (10), the outer tube (6) It is formed by installing a translucent rotating shaft ( 10c ) between bearings ( 10a, 10b ) attached to both ends, and the heat collecting plate ( 8 ) is fitted to the intermediate portion in the width direction. The strip plate having a groove ( 8a ) is provided so as to be rotatable by fitting the rotating shaft ( 10c ) into the fitting groove ( 8a ) . The heat collecting duct described. 上記集熱板(８)を、太陽光をエネルギー源とする駆動装置(40)で回転軸(10ｃ)の回りを回転可能に形成したことを特徴とする、請求項３記載の集熱ダクト。 The heat collecting duct according to claim 3 , wherein the heat collecting plate ( 8 ) is formed so as to be rotatable around a rotation axis ( 10c ) by a driving device ( 40 ) using sunlight as an energy source. 建物の屋上その他の屋外空間に、上記請求項１乃至請求項４の何れかに記載した集熱ダクト(４)を、その上流部を下にして斜めに配置するとともに、上記集熱ダクト(４)の下流部を空調機(54)を介して建物内の空調空間(Ａ)内へ接続したことを特徴とする、集熱ダクトを利用した換気システム。 The heat collecting duct ( 4 ) according to any one of the above claims 1 to 4 is disposed obliquely with the upstream portion of the heat collecting duct ( 4 ) down on the rooftop or other outdoor space of the building, and the heat collecting duct ( 4 ), characterized in that connected to the air conditioner (54) via the air-conditioned space (a) inside of the building the downstream portion of the ventilation system using heat collector duct. 上記集熱ダクト(４)を平行に複数個設け、かつこれら集熱ダクトの上端部を一本の集熱ヘッダー(36)に接続し、該集熱ヘッダーを介して空調機(54)へ連通させたことを特徴とする、請求項５記載の集熱ダクトを利用した換気システム。 A plurality of the heat collecting ducts ( 4 ) are provided in parallel, and the upper ends of these heat collecting ducts are connected to a single heat collecting header ( 36 ) and communicated with the air conditioner ( 54 ) through the heat collecting header. The ventilation system using the heat collecting duct according to claim 5, wherein the ventilation system is used.
JP2004212560A 2004-07-21 2004-07-21 Heat collection duct and ventilation system using heat collection duct Expired - Fee Related JP4618632B2 (en)

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